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A propeller turbine has been designed to develop 22000 kW under a head of 20 m whilst turning 150 revolutions per minute. The relevant data is: hydraulic efficiency 95%; overall efficiency 88%; outer diameter 4.5 m and diameter of the hub 2 m. Determine the runner exit vane angles at the hub and at the outer periphery. Assume that the turbine discharges without whirl at exit.
Refer Fig. for nomenclature and velocity vector diagrams.
  • a)
    β2 = 32.5° at hub and 15.85° at outer periphery
  • b)
    β2 = 15.85° at hub and 32.5° at outer periphery
  • c)
    β2 = 214.35° at hub and 161.6° at outer periphery
  • d)
    β2 = 161.6° at hub and 214.35° at outer periphery
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A propeller turbine has been designed to develop 22000 kW under a hea...
Power available at the shaft, P = wQH × ηo 22000 × 103 = 9810 × Q × 20 × 0.88
∴ Flow rate Q = 127.42 m3⁄s
If Do is the outside diameter of the runner and Db is diameter of hub or boss, then
Hence runner vane angle at exit, β2 = tan−1(0.2835) = 15.85°
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Most Upvoted Answer
A propeller turbine has been designed to develop 22000 kW under a hea...
Power available at the shaft, P = wQH × ηo 22000 × 103 = 9810 × Q × 20 × 0.88
∴ Flow rate Q = 127.42 m3⁄s
If Do is the outside diameter of the runner and Db is diameter of hub or boss, then
Hence runner vane angle at exit, β2 = tan−1(0.2835) = 15.85°
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Community Answer
A propeller turbine has been designed to develop 22000 kW under a hea...
Power available at the shaft, P = wQH × ηo 22000 × 103 = 9810 × Q × 20 × 0.88
∴ Flow rate Q = 127.42 m3⁄s
If Do is the outside diameter of the runner and Db is diameter of hub or boss, then
Hence runner vane angle at exit, β2 = tan−1(0.2835) = 15.85°
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A propeller turbine has been designed to develop 22000 kW under a head of 20 m whilst turning 150 revolutions per minute. The relevant data is: hydraulic efficiency 95%; overall efficiency 88%; outer diameter 4.5 m and diameter of the hub 2 m. Determine the runner exit vane angles at the hub and at the outer periphery. Assume that the turbine discharges without whirl at exit.Refer Fig. for nomenclature and velocity vector diagrams.a) β2 = 32.5° at hub and 15.85° at outer peripheryb) β2 = 15.85° at hub and 32.5° at outer peripheryc) β2 = 214.35° at hub and 161.6° at outer peripheryd) β2 = 161.6° at hub and 214.35° at outer peripheryCorrect answer is option 'A'. Can you explain this answer?
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A propeller turbine has been designed to develop 22000 kW under a head of 20 m whilst turning 150 revolutions per minute. The relevant data is: hydraulic efficiency 95%; overall efficiency 88%; outer diameter 4.5 m and diameter of the hub 2 m. Determine the runner exit vane angles at the hub and at the outer periphery. Assume that the turbine discharges without whirl at exit.Refer Fig. for nomenclature and velocity vector diagrams.a) β2 = 32.5° at hub and 15.85° at outer peripheryb) β2 = 15.85° at hub and 32.5° at outer peripheryc) β2 = 214.35° at hub and 161.6° at outer peripheryd) β2 = 161.6° at hub and 214.35° at outer peripheryCorrect answer is option 'A'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about A propeller turbine has been designed to develop 22000 kW under a head of 20 m whilst turning 150 revolutions per minute. The relevant data is: hydraulic efficiency 95%; overall efficiency 88%; outer diameter 4.5 m and diameter of the hub 2 m. Determine the runner exit vane angles at the hub and at the outer periphery. Assume that the turbine discharges without whirl at exit.Refer Fig. for nomenclature and velocity vector diagrams.a) β2 = 32.5° at hub and 15.85° at outer peripheryb) β2 = 15.85° at hub and 32.5° at outer peripheryc) β2 = 214.35° at hub and 161.6° at outer peripheryd) β2 = 161.6° at hub and 214.35° at outer peripheryCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A propeller turbine has been designed to develop 22000 kW under a head of 20 m whilst turning 150 revolutions per minute. The relevant data is: hydraulic efficiency 95%; overall efficiency 88%; outer diameter 4.5 m and diameter of the hub 2 m. Determine the runner exit vane angles at the hub and at the outer periphery. Assume that the turbine discharges without whirl at exit.Refer Fig. for nomenclature and velocity vector diagrams.a) β2 = 32.5° at hub and 15.85° at outer peripheryb) β2 = 15.85° at hub and 32.5° at outer peripheryc) β2 = 214.35° at hub and 161.6° at outer peripheryd) β2 = 161.6° at hub and 214.35° at outer peripheryCorrect answer is option 'A'. Can you explain this answer?.
Solutions for A propeller turbine has been designed to develop 22000 kW under a head of 20 m whilst turning 150 revolutions per minute. The relevant data is: hydraulic efficiency 95%; overall efficiency 88%; outer diameter 4.5 m and diameter of the hub 2 m. Determine the runner exit vane angles at the hub and at the outer periphery. Assume that the turbine discharges without whirl at exit.Refer Fig. for nomenclature and velocity vector diagrams.a) β2 = 32.5° at hub and 15.85° at outer peripheryb) β2 = 15.85° at hub and 32.5° at outer peripheryc) β2 = 214.35° at hub and 161.6° at outer peripheryd) β2 = 161.6° at hub and 214.35° at outer peripheryCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Civil Engineering (CE). Download more important topics, notes, lectures and mock test series for Civil Engineering (CE) Exam by signing up for free.
Here you can find the meaning of A propeller turbine has been designed to develop 22000 kW under a head of 20 m whilst turning 150 revolutions per minute. The relevant data is: hydraulic efficiency 95%; overall efficiency 88%; outer diameter 4.5 m and diameter of the hub 2 m. Determine the runner exit vane angles at the hub and at the outer periphery. Assume that the turbine discharges without whirl at exit.Refer Fig. for nomenclature and velocity vector diagrams.a) β2 = 32.5° at hub and 15.85° at outer peripheryb) β2 = 15.85° at hub and 32.5° at outer peripheryc) β2 = 214.35° at hub and 161.6° at outer peripheryd) β2 = 161.6° at hub and 214.35° at outer peripheryCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A propeller turbine has been designed to develop 22000 kW under a head of 20 m whilst turning 150 revolutions per minute. The relevant data is: hydraulic efficiency 95%; overall efficiency 88%; outer diameter 4.5 m and diameter of the hub 2 m. Determine the runner exit vane angles at the hub and at the outer periphery. Assume that the turbine discharges without whirl at exit.Refer Fig. for nomenclature and velocity vector diagrams.a) β2 = 32.5° at hub and 15.85° at outer peripheryb) β2 = 15.85° at hub and 32.5° at outer peripheryc) β2 = 214.35° at hub and 161.6° at outer peripheryd) β2 = 161.6° at hub and 214.35° at outer peripheryCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for A propeller turbine has been designed to develop 22000 kW under a head of 20 m whilst turning 150 revolutions per minute. The relevant data is: hydraulic efficiency 95%; overall efficiency 88%; outer diameter 4.5 m and diameter of the hub 2 m. Determine the runner exit vane angles at the hub and at the outer periphery. Assume that the turbine discharges without whirl at exit.Refer Fig. for nomenclature and velocity vector diagrams.a) β2 = 32.5° at hub and 15.85° at outer peripheryb) β2 = 15.85° at hub and 32.5° at outer peripheryc) β2 = 214.35° at hub and 161.6° at outer peripheryd) β2 = 161.6° at hub and 214.35° at outer peripheryCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of A propeller turbine has been designed to develop 22000 kW under a head of 20 m whilst turning 150 revolutions per minute. The relevant data is: hydraulic efficiency 95%; overall efficiency 88%; outer diameter 4.5 m and diameter of the hub 2 m. Determine the runner exit vane angles at the hub and at the outer periphery. Assume that the turbine discharges without whirl at exit.Refer Fig. for nomenclature and velocity vector diagrams.a) β2 = 32.5° at hub and 15.85° at outer peripheryb) β2 = 15.85° at hub and 32.5° at outer peripheryc) β2 = 214.35° at hub and 161.6° at outer peripheryd) β2 = 161.6° at hub and 214.35° at outer peripheryCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A propeller turbine has been designed to develop 22000 kW under a head of 20 m whilst turning 150 revolutions per minute. The relevant data is: hydraulic efficiency 95%; overall efficiency 88%; outer diameter 4.5 m and diameter of the hub 2 m. Determine the runner exit vane angles at the hub and at the outer periphery. Assume that the turbine discharges without whirl at exit.Refer Fig. for nomenclature and velocity vector diagrams.a) β2 = 32.5° at hub and 15.85° at outer peripheryb) β2 = 15.85° at hub and 32.5° at outer peripheryc) β2 = 214.35° at hub and 161.6° at outer peripheryd) β2 = 161.6° at hub and 214.35° at outer peripheryCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Civil Engineering (CE) tests.
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